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Spacetemporal analysis of tissue repair for ischemic organ damage

Research Project

Project/Area Number 21H04836
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 56:Surgery related to the biological and sensory functions and related fields
Research InstitutionUniversity of Tsukuba

Principal Investigator

Shibuya Akira  筑波大学, 医学医療系, 教授 (80216027)

Project Period (FY) 2021-04-05 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥42,250,000 (Direct Cost: ¥32,500,000、Indirect Cost: ¥9,750,000)
Fiscal Year 2023: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2022: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2021: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Keywords脳梗塞 / 心筋梗塞 / 急性腎障害 / マクロファージ / エフェロサイトーシス / 炎症 / 遺伝子発現変 / DAMPs / CD300a / 時空間的ダイナミクス / 腎虚血 / 肝臓虚血 / フォスファチジルセリン / ダメージ関連分子パターン / 自然免疫 / 抑制性免疫受容体 / アレルギー / 肝虚血
Outline of Research at the Start

我が国の心疾患, 脳血管疾患による死亡は全死因の中で,それぞれ2番目, 3番目であり, 生存者であっても,後遺症である心不全, 神経障害による肉体的, 精神的, 社会的な質(QOL)の低下は著しい。また, これらの医療費も膨大であり, その経済的損失も計り知れない。本研究では, 脳梗塞、心筋梗塞、および脳、心臓、肝臓、腎臓の虚血再還流後の組織障害の時空間的な病理とその分子機構を明らかにし、エフェロサイトーシスを介したこれらの疾患の制御法開発のための基盤的研究を行う。

Outline of Final Research Achievements

Cardiac and cerebrovascular diseases are the second and third leading causes of death in Japan, respectively, and the medical, social, and health economic losses are incalculable. In this study, we found that in mice genetically deficient in CD300a, an inhibitory immune receptor of myeloid cells, efferocytosis by macrophages is enhanced, and organ damage is reduced in an ischemia-reflux model of the brain, heart, and kidney in mice. Furthermore, a neutralizing antibody against CD300a was shown to similarly reduce ischemia-reperfusion injury in these organs. These results demonstrate the potential of antibodies targeting CD300A for the treatment of ischemic organ injury.

Academic Significance and Societal Importance of the Research Achievements

虚血により膨大な数の死細胞が生じると、放出されたダメージ関連分子パターンが炎症の悪循環のトリガーとなり、時間経過につれて広範かつ高度な組織障害が成立する(炎症の悪循環)。これは、生命予後や重篤なQOLの低下に直結する。本研究では、虚血によって生じる死細胞をCD300標的としてエフェロサイトーシスを亢進させ効率的に除去することで、炎症の悪循環を断ち切り、組織修復が期待できることを明らかにし、心疾患, 脳血管疾患などに対するこれまでにない新しいコンセプトの虚血性疾患の治療法の開発に繋がり、医学, 社会, 経済のあらゆる面で大きな損失を改善できる可能性がある。

Report

(4 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Comments on the Screening Results   Annual Research Report
  • Research Products

    (11 results)

All 2021 2020

All Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 8 results)

  • [Journal Article] DNAM-1 promotes inflammation-driven tumor development via enhancing IFN-γ production2021

    • Author(s)
      Nakamura-Shinya Y, Iguchi-Manaka A, Murata R, Sato K, Van Vo A, Kanemaru K, Shibuya A, Shibuya K.
    • Journal Title

      Int Immunol

      Volume: 34 Issue: 3 Pages: 149-157

    • DOI

      10.1093/intimm/dxab099

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] DNAM-1 versus TIGIT: competitive roles in tumor immunity and inflammatory responses.2021

    • Author(s)
      Shibuya A, Shibuya K
    • Journal Title

      Int Immunol,

      Volume: 33 Issue: 12 Pages: 687-692

    • DOI

      10.1093/intimm/dxab085

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tumor-derived extracellular vesicles regulate tumor-infiltrating regulatory T cells via the inhibitory immunoreceptor CD300a2021

    • Author(s)
      Nakazawa Yuta、Kanemaru Kazumasa、Nakahashi-Oda Chigusa、Shibuya Akira
    • Journal Title

      eLife

      Volume: ー

    • DOI

      10.1101/2020.11.10.376715

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An inhibitory immunoreceptor, Allergin-1, suppresses FITC-induced type 2 contact hypersensitivity2021

    • Author(s)
      Almeida M, Shibagaki S, Tahara-Hanaoka S, Shibayama S, Shibuya A
    • Journal Title

      BBRC(Biochem Biophys Res Commun)

      Volume: 579 Pages: 146-152

    • DOI

      10.1016/j.bbrc.2021.09.048

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CD300a blockade enhances efferocytosis by infiltrating myeloid cells and ameliorates neuronal deficit after ischemic stroke2021

    • Author(s)
      Nakahashi-Oda Chigusa、Fujiyama Satoshi、Nakazawa Yuta、Kanemaru Kazumasa、Wang Yaqiu、Lyu Wenxin、Shichita Takashi、Kitaura Jiro、Abe Fumie、Shibuya Akira
    • Journal Title

      Science Immunology

      Volume: 6 Issue: 64

    • DOI

      10.1126/sciimmunol.abe7915

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Selective expression of a C-type lectin receptor, Clec12b, on skin mast cells2021

    • Author(s)
      Iijima Ayana、Kanemaru Kazumasa、Wang Yaqiu、Nabekura Tsukasa、Nakamura Yoshiyuki、Fujisawa Yasuhiro、Mori Daiki、Ohmuraya Masaki、Yamasaki Sho、Tahara-Hanaoka Satoko、Shibuya Akira
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 561 Pages: 101-105

    • DOI

      10.1016/j.bbrc.2021.04.097

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] DNAM-1 regulates Foxp3 expression in regulatory T cells by interfering with TIGIT under inflammatory conditions.2021

    • Author(s)
      Sato K, Yamashita-Kanemaru Y, Abe F, Murata R, Nakamura-Shinya Y, Kanemaru K, Muratani M, Veillette A, Goto M, Ito M, Shibuya A, Shibuya K.
    • Journal Title

      Proc Natl Acad Sci USA,

      Volume: 118

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 8.Yamashita-Kanemaru Y, Oh-oka K, Abe F, Shibuya K, Shibuya A. Suppression of Th1 and Th17 proinflammatory cytokines and upregulation of Foxp3 expression by a humanized anti-DNAM-1 monoclonal antibody2021

    • Author(s)
      Yamashita-Kanemaru Y, Oh-oka K, Abe F, Shibuya K, Shibuya A.
    • Journal Title

      Monoclonal Antibodies in Immunodiagnosis and Immunotherapy

      Volume: 40 Issue: 2 Pages: 52-59

    • DOI

      10.1089/mab.2020.0042

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ILC1:Guardians of the oral mucosa against enemy viruses.2021

    • Author(s)
      Nabekura T, Shibuya A
    • Journal Title

      Immunity

      Volume: 54(2) Issue: 2 Pages: 196-198

    • DOI

      10.1016/j.immuni.2021.01.002

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Type 1 innate lymphoid cells: Soldiers at the front line of immunity.2021

    • Author(s)
      Nabekura T, Shibuya A
    • Journal Title

      Biomedical Journal

      Volume: 44 Issue: 2 Pages: 115-122

    • DOI

      10.1016/j.bj.2020.10.001

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hemagglutinating virus of Japan‐envelope containing programmed cell death‐ligand 1 siRNA inhibits immunosuppressive activities and elicits antitumor immune responses in glioma2020

    • Author(s)
      Sugii Narushi、Matsuda Masahide、Okumura Genki、Shibuya Akira、Ishikawa Eiichi、Kaneda Yasufumi、Matsumura Akira
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 1 Pages: 81-90

    • DOI

      10.1111/cas.14721

    • NAID

      120007178959

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access

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Published: 2021-04-28   Modified: 2025-01-30  

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